Jaafar, M. A., H. L. Chen, and A. Ahmad. “Oral Health Knowledge and Behaviour Among Patient in Supportive Periodontal Care in Sarawak”. IIUM Journal of Orofacial and Health Sciences, vol. 2, no. 1, Feb. 2021, pp. 26-36, doi:10.31436/ijohs.v2i1.59.